2j8d Summary

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X-RAY HIGH RESOLUTION STRUCTURE OF THE PHOTOSYNTHETIC REACTION CENTER FROM RB. SPHAEROIDES AT PH 8 IN THE CHARGE-SEPARATED STATE

The structure was published by Koepke, J., Krammer, E.M., Klingen, A.R., Sebban, P., Ullmann, G.M., and Fritzsch, G., in 2007 in a paper entitled "Ph Modulates the Quinone Position in the Photosynthetic Reaction Center from Rhodobacter Sphaeroides in the Neutral and Charge Separated States." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.07 Å and deposited in 2006.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 3 biomacromolecules, namely REACTION CENTER PROTEIN H CHAIN, REACTION CENTER PROTEIN L CHAIN, and REACTION CENTER PROTEIN M CHAIN.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotrimers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
H REACTION CENTER PROTEIN H CHAIN P0C0Y7 (1-260) (RCEH_RHOSH)search Rhodobacter sphaeroidessearch 91% 260 100%
L REACTION CENTER PROTEIN L CHAIN P0C0Y8 (2-282) (RCEL_RHOSH)search Rhodobacter sphaeroidessearch 94% 281 100%
M REACTION CENTER PROTEIN M CHAIN P0C0Y9 (2-308) (RCEM_RHOSH)search Rhodobacter sphaeroidessearch 96% 307 100%


This entry contains 3 unique UniProt proteins:

UniProt accession Name Organism PDB
P0C0Y7 (1 - 260) REACTION CENTER PROTEIN H CHAIN Rhodobacter sphaeroides
P0C0Y8 (2 - 282) REACTION CENTER PROTEIN L CHAIN Rhodobacter sphaeroides
P0C0Y9 (2 - 308) REACTION CENTER PROTEIN M CHAIN Rhodobacter sphaeroides

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
H (P0C0Y7) Photosynthetic Reaction Center, subunit H, domain 1search, Photosynthetic Reaction Center, subunit H, domain 2search PF03967: Photosynthetic reaction centre, H-chain N-terminal regionsearch, PF05239: PRC-barrel domainsearch
L (P0C0Y8) Bacterial photosystem II reaction centre, L and M subunitssearch Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch
M (P0C0Y9) Bacterial photosystem II reaction centre, L and M subunitssearch Membrane spanning alpha-helix pairssearch PF00124: Photosynthetic reaction centre proteinsearch

Chain ID Biological process (GO) Molecular function (GO) Cellular component (GO)
H (P0C0Y7) photosynthesis, light reactionsearch photosynthesissearch oxidation-reduction processsearch protein-chromophore linkagesearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch chlorophyll bindingsearch bacteriochlorophyll bindingsearch plasma membrane light-harvesting complexsearch membranesearch plasma membrane-derived chromatophore membranesearch integral component of membranesearch
L (P0C0Y8) photosynthetic electron transport in photosystem IIsearch photosynthesis, light reactionsearch oxidation-reduction processsearch protein-chromophore linkagesearch photosynthesissearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch bacteriochlorophyll bindingsearch chlorophyll bindingsearch metal ion bindingsearch plasma membrane light-harvesting complexsearch integral component of membranesearch membranesearch plasma membrane-derived chromatophore membranesearch
M (P0C0Y9) photosynthesis, light reactionsearch photosynthetic electron transport in photosystem IIsearch oxidation-reduction processsearch protein-chromophore linkagesearch photosynthesissearch electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activitysearch metal ion bindingsearch bacteriochlorophyll bindingsearch chlorophyll bindingsearch plasma membrane light-harvesting complexsearch integral component of membranesearch membranesearch plasma membrane-derived chromatophore membranesearch

Chain InterPro annotation
H Photosynthetic reaction centre, H subunitsearch PRC-barrel-likesearch Bacterial photosynthetic reaction centre, H-chain, C-terminalsearch Photosynthetic reaction centre, H subunit, N-terminalsearch PRC-barrel domainsearch
L Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, L subunitsearch
M Photosynthetic reaction centre, L/Msearch Photosynthetic reaction centre, M subunitsearch